128008071065 has 32 divisors (see below), whose sum is σ = 181939322880. Its totient is φ = 84606840000.

The previous prime is 128008071041. The next prime is 128008071101. The reversal of 128008071065 is 560170800821.

It is not a de Polignac number, because 128008071065 - 2⁶ = 128008071001 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37316 + ... + 507354.

It is an arithmetic number, because the mean of its divisors is an integer number (5685603840).

Almost surely, 2^128008071065 is an apocalyptic number.

It is an amenable number.

128008071065 is a deficient number, since it is larger than the sum of its proper divisors (53931251815).

128008071065 is a wasteful number, since it uses less digits than its factorization.

128008071065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470333.

The product of its (nonzero) digits is 26880, while the sum is 38.

Adding to 128008071065 its reverse (560170800821), we get a palindrome (688178871886).

The spelling of 128008071065 in words is "one hundred twenty-eight billion, eight million, seventy-one thousand, sixty-five".